JP3094196B2 - Welding and removing device for synthetic resin frames - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of synthetic resin shaped members constituting a synthetic resin frame such as a window frame, a fitting, or a picture frame used for construction, which are cut at 45 degrees. The present invention relates to a device for cutting and removing a welded tension generated at a welded portion in which is welded at a right angle.

[0002]

2. Description of the Related Art When manufacturing synthetic resin frames such as window frames, fittings, picture frames and the like, the ends of synthetic resin profiles are welded at right angles as follows. First, the end portion of the synthetic resin shaped material is cut at 45 degrees, the cut surfaces are butted together and welded in a molten state by a heating means. When welding is performed in this way, a welding tension occurs at the welding portion,
It is necessary to remove this welding tension.

[0003] As a device for removing the welding tension generated at the welded portion as described above, for example, a device disclosed in Japanese Patent Publication No. 3-8887 is known. In other words, while rotating the conical rotary blade having a vertical angle of about 76 degrees, the rotary shaft is inclined and moved along the welded portion to scrape off the welding tension.

[0004]

In such a device for removing the welding tension, since the cutting is performed by rotating the rotary blade, the surface accuracy of the cut surface is not very good, and there is a risk of shaving the surface of the shaped material. It is scraped off with a slight distance from the profile surface, and the welded tension after cutting slightly protrudes from the profile surface. For this reason, in the case of the above-mentioned scraping using the rotary blade, it is necessary for the operator to finish the work by hand after the scraping, and the work of removing the welded tension becomes troublesome.

In particular, in the case of a synthetic resin frame made of a profile having a vertical surface and a synthetic resin frame made of a profile oblique to the vertical, the rotation axes of the rotary blades are inclined at different angles. It is necessary to change the angle of the rotation axis, and the structure becomes very complicated.

Accordingly, an object of the present invention is to provide an apparatus for welding and removing a synthetic resin frame which can solve the above-mentioned problems.

[0007]

Means for Solving the Problems An end 1a of a synthetic resin profile 1 is cut at 45 degrees, and the ends of the synthetic resin frame 1 are welded at right angles. A vertical opening 24 having a vertical side 241a and a vertical side 241b oblique to the vertical.
1, a vertical guide 242 inserted into the vertical opening 241 and supported in a vertical posture in contact with the one vertical surface 241a and an oblique posture in contact with the other vertical surface 241b. A sliding member that slides along the sliding member, a cutter attached to the sliding member, and a means for moving the vertical guide 242. The moving means includes a chain 245 in a substantially hook-shaped guide hole 244 formed in the mounting body. An apparatus for welding and removing a synthetic resin frame in which one end of the chain 245 is connected to the vertical guide 242 and the other end is connected to a movable portion of a cylinder vertically mounted.

[0008]

[Operation] If the vertical guide 242 is supported in a vertical position and the sliding member is slid, the cutter vertically moves up and down.
When the sliding body slides while supporting the cutter in an oblique position, the cutter moves up and down obliquely with respect to the vertical. Therefore, the welding tension generated at the vertical surface welding portion of the synthetic resin frame a made of a shape having a vertical surface. Can be removed by cutting, and the welded tension generated at the welded portion of the synthetic resin frame a made of a profile having a surface oblique to the vertical can be removed by cutting. In addition, it is only necessary to move the vertical guide 242 and slide the sliding body along the vertical guide 242, so that the structure is simplified. In addition, the chain 2
Since the vertical guide 242 is moved by sliding the slide 45, the overall plane size is reduced, and the welded tension can be cut by moving into the small synthetic resin frame.

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, an upper cutting unit B is provided at an upper part of the fuselage A, a lower cutting unit C is provided at a lower part of the fuselage A, and a frame positioning part D is provided at an upper and lower middle part of the fuselage A. A frame moving mechanism E for positioning and moving the frame a to the frame positioning section D is provided above the body A.

[0010] The positioning unit D, as shown in FIG. 1 and FIGS. 2 and 3, the fuselage transverse plate 20 bunk roller pair of which is provided above and below the middle of the opened recessed section A ₁ on the front of the A 21 And a vertical plate 22 are attached to each other, and a holding plate 19 is provided on the vertical plate 22 so as to be movable up and down by a cylinder 18, and the left and right vertical plates 22 have a substantially V-shaped plane with a mutual angle of 90 degrees. As shown in FIG. 3, the corners b are in contact with the left and right vertical plates 22 so that the frame a is positioned on the fuselage A.

As shown in FIGS. 1 and 2, the frame moving mechanism E supports a mounting body 24 along a guide rail 23 provided on the upper front surface of the machine body A by a lateral feed cylinder 25 so as to be movable left and right. Vertical rod 2 fitted to a pair of cylindrical bodies 26 of the body 24
7 and a vertical cylinder 29 is mounted over the horizontal plate 28 and the mounting body 24, and the movable piece 31 is moved back and forth by a forward and backward feed cylinder 32 along a horizontal rod 30 provided on the horizontal plate 28. The roller 33 is attached to the movable piece 31 and freely supported.

Next, the operation of positioning the frame a on the body A will be described. The frame a is transported to the positioning unit D along a table (not shown) provided on the front side of the machine A. This frame a
Is carried out, for example, by an apparatus disclosed in Japanese Patent Publication No. 2-12692.

When the transverse feed cylinder 25 is extended and contracted,
Is moved along the guide rail 23 to position the roller 33 at the center of the positioning determining portion D, that is, at the virtual corner portion of the pair of vertical plates 22.

The upper and lower cylinders 29 are extended to move the horizontal plate 28 downward so that the rollers 33 face the frame a, and the forward and backward feed cylinders 32 are extended and the rollers 33 are moved toward the machine body A to turn the corners of the frame a. Then, the frame a is moved, and the frame a is pressed against the pair of vertical plates 22 to position the frame a to the body A as shown by the imaginary line in FIG. After this, presser plate 1
At 9, the frame a is pressed against the horizontal plate 20 to position and hold the frame a, and the roller 33 is moved in the opposite direction to the above to separate from the frame a.

As shown in FIG. 4, the profile 1 constituting the frame a is a long material having a hollow cross-sectional shape surrounded by an upper surface 2, a vertical surface 3 on one side, a lower surface 4 and a vertical surface 5 on the other side. , The upper surface 2 is horizontal and the rising piece 15 is integrally provided,
Has a stepped shape with a vertical surface 3a and a horizontal surface 3b, and a lower surface 4
Has an inclined first lower surface 4a and a horizontal second lower surface 4b, and is provided integrally with a downward projecting portion 16; It has a surface 16a.

Thus, when the frame a is positioned, the side vertical surface 5 comes into contact with the stepped roller 21 and the downward projection 1
The lower surface 16b of 6 is placed on the horizontal plate 20, and the corner portion b, that is, the welded portion is located between the pair of horizontal plates 20.

Next, the details of the lower cutting unit C will be described. As shown in FIGS. 1 and 2, wherein the bottom front of the machine body A bracket 170 is mounted across between the left and right sides of the recessed portions A _1, the vertical guide tube 171 to the bracket 170
A first mounting 173 is supported by the vertical rod 172 so as to be able to move up and down freely, and when the raising and lowering cylinder 174 provided on the bracket 170 is expanded and contracted, the first mounting body 173 moves up and down. A pair of horizontal rods 175 are attached to the first mounting member 173 in the front-rear direction, and a second mounting member 176 is attached to the horizontal rod 175.
Are supported by a pair of front and rear cylinders 177 so as to be slidable back and forth. A third mounting body 178 is connected to the second mounting body 176, and the third mounting body 178 is connected to the first, second, and third cutting members. Machines 179, 180, 181 are installed.

Next, the second mounting member 176 and the third mounting member 1
The connection structure 78 will be described. As shown in FIG. 5, a horizontal rod 182 is suspended between a pair of second mounting members 176, and a third mounting member 178 is slidably supported along the horizontal rod 182, and the third mounting member 178 is provided. The springs 183 are respectively provided between the left and right sides of the pair and the pair of second mounting bodies 176, the third mounting body 178 is located at the center between the pair of second mounting bodies 176, and the third mounting body 178 is
3 is compressed so that it can be slightly moved left and right.

Next, the details of the first cutting machine 179 will be described.
As shown in FIG. 6, a block 184 is mounted on the third mounting body 178, and a horizontal guide 186 is mounted on the block 184 via a bracket 185, and a sliding body 187 is moved forward and backward along the horizontal guide 186. The first cutter 1 is provided above and below the slider 187.
88 and a second cutter 189 are fixed with bolts, and the blade portions of the first and second cutters 188 and 189 have a horizontal upper surface 18.
8a, 189a and slanted lower surfaces 188b, 189b, and the distance between the upper surface 188a of the first cutter 188 and the upper surface 189a of the second cutter 189 is lower than that of the second lower surface 4b of the shaped member 1. Lower surface 1 of facing portion 16
6b.

A block 190 is mounted on the lateral guide 186, and the block 190 has a semicircular hole 19 formed therein.
1 is formed, and the vertical guide portion 192 is attached downward, and the first cylinder 1
93 is mounted vertically, and the first cylinder 193
A chain 195 is connected to a movable body 194 that slides along the vertical guide portion 192, and the chain 195 is connected to the slide body 187 via a semicircular hole 191 of the block 190, and the first cylinder 193 is The expansion and contraction causes the sliding body 187 to slide in the front-rear direction along the lateral guide 186 via the chain 195. As shown in FIG. 7 , a pair of left and right positioning pieces 196 are attached to the front portion of the horizontal guide 186, and front faces 196a of the pair of positioning pieces 196 are provided.
Is a 45-degree slope, so that the virtual intersection point intersects the extension of the center of the first and second cutters 188 and 189.

Next, the details of the third cutting machine 181 will be described.
As shown in FIG. 6, a flat U-shaped holding block 240 is attached to the block 184 to form a vertical opening 241. One vertical surface 241a of this vertical opening 241 is vertical and the other vertical surface 241b is vertical. And the vertical opening 2
The upper part of the vertical guide 242 faces inside 41. A support link 243 is connected to the vertical guide 242 with a pin,
The support link 243 is fitted into the linear portion 244a of the guide hole 244 of the block 184, and
The chain 245 is connected to a slider 247 fitted to a vertical guide 246 attached to the block 184, and attached to the vertical guide 246. Second cylinder 248
Is connected to the slider 247.

Therefore, when the movable portion 248a of the cylinder 248 is contracted and the chain 245 is pulled, the vertical guide 242 is pressed against the one side vertical surface 241a of the vertical opening 241 via the support link 243, and the vertical guide 242 is When the movable portion 248a of the cylinder 248 is extended and the chain 245 is pushed, the vertical guide 242 is pressed against the other vertical surface 241b of the vertical opening 241 via the support link 243 so that the vertical guide 242 is in the vertical position. An oblique posture having a certain angle is obtained.

As shown in FIG. 6, a first sliding body 250 is provided on the vertical guide 242 so as to be slidable up and down. The first sliding body 250 is attached to the lower end of the vertical guide 242 via a bracket 251. The first sliding body 250 is slid up and down by the third cylinder 252.
3 is attached via a link 254, and a fourth cylinder 2 is attached to a bracket 255 attached to the first sliding body 250.
56 is swingably mounted, and its second cylinder 256
The movable portion 256a of the
The second sliding body 253 has a fifth cutter 2
58 are attached.

Because of this, the fourth cylinder 256
When the movable portion 256a of the second sliding member 253 is extended and contracted,
Moves forward and backward while moving up and down with respect to the first sliding body 253 via the link 254, and the fifth cutter 258 moves back and forth while moving up and down. In the state shown in the figure, the movable portion 256a of the fourth cylinder 256 is extended to
3 shows a state in which 3 has been moved upward and rearward.

Next, a description will be given of the operation of scraping off the welding tension by the lower cutting unit B. After the frame a is positioned and held on the body A as described above, the elevating cylinder 174 is extended and the first mounting body 173 is raised to thereby position the positioning piece 196.
In the frame a so that the upper surface of the lateral guide 186 is brought into contact with the lower surface 4 of the adjacent profile member 1.
7 and the third mounting member 17 together with the second mounting member 176.
8 to the body A side and the front of the pair of positioning pieces 196
196a is pressed against one side vertical surface 3 of the adjacent profile 1.

As a result, the third mounting body 178 moves left and right with respect to the second mounting body 176 against the spring 183, and the third mounting body 178 is positioned in the front-back and left-right directions with respect to the frame a. At the same time, the third attachment body 178 is positioned vertically with respect to the frame a, and the first and second cutters 188, 188,
189 adjacent to the lower surface 4 corners of the profile 1 (welded portion)
And the fifth cutter 258 is positioned at the corner (welded portion) of the inner vertical surface 16a of the downward protrusion 16 of the adjacent profile 1.

In this state, the first cylinder 193 is extended, the first cutter 188 is used to scrape off the welding tension generated at the welded portion of the second lower surface 4 b of the adjacent profile 1, and the second cutter 189 is used to project the protrusion of the adjacent profile 1. The welding tension generated at the welding portion on the lower surface 16b of the portion 16 is scraped off.

In the above-described state, the second cylinder 248 is extended to set the vertical guide 242 of the third cutting machine 181 in an oblique posture having a certain angle with respect to the vertical posture as shown by a virtual line in FIG. To extend the first sliding body 250
Slide upwards. As a result, the fifth cutter 258 moves upward at a certain angle with respect to the vertical, and scrapes off the welded tension generated at the welded portion on the oblique inner surface 16a of the protrusion 16 of the adjacent profile 1.

Next, different cutting operations by the third cutting machine 181 will be described. By contracting the second cylinder 248 to bring the vertical guide 242 into the vertical position, the fifth cutter 258 is brought into the vertical position, and the third cylinder 252 is extended to slide the first slide 250 upward. Thereby, the fifth cutter 25
Since 8 moves vertically upward, it is possible to cut and remove the welded tension generated at the welded portion of the vertical inner side surface 16c of the projection 16 of the adjacent profile 1 so that it is possible to cope with profiles having different shapes.

[0030]

When the vertical guide 242 is supported in a vertical position and the sliding member is slid, the cutter vertically moves up and down.
If the sliding body slides while supporting the sliding member 42 in an oblique position, the cutter moves up and down obliquely to the vertical. Therefore, the welding generated at the vertical surface welding portion of the synthetic resin frame a made of a profile having a vertical surface. The tension can be removed by cutting, and the welded tension generated at the welded portion of the synthetic resin frame a made of a profile having a surface oblique to the vertical can be removed by cutting. In addition, it is only necessary to move the vertical guide 242 and slide the sliding body along the vertical guide 242, so that the structure is simplified. In addition, since the vertical guide 242 is moved by sliding the chain 245 by the vertical cylinder, the overall plane size is reduced, and the welding can be cut by moving into the small synthetic resin frame.

[Brief description of the drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention.

FIG. 2 is an overall front view showing an embodiment of the present invention.

FIG. 3 is a schematic plan view of a frame positioning unit.

FIG. 4 is a perspective view of a synthetic resin frame.

FIG. 5 is a detailed vertical sectional view of a lower cutting unit.

FIG. 6 is a longitudinal sectional view of a lower cutting unit.

FIG. 7 is a plan view of FIG. 29;

[Explanation of symbols]

A: machine body, B: upper cutting unit, C: lower cutting unit, D: frame positioning unit, E: frame moving mechanism, 241: vertical opening, 241a: one side vertical surface, 241b: other side vertical surface, 242
... vertical guide, 244 ... guide hole, 245 ... chain, 2
48: second cylinder, 250: first sliding body, 252: third cylinder, 253: second sliding body.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Satoshi Inoue 91, Kagimachi, Kamiichi-cho, Nakashinagawa-gun, Toyama Prefecture (72) Inventor Yutaka Sunaura 2-21, Okuda Hisashicho, Toyama City, Toyama Prefecture 4-247925 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B26D 1/06 B29C 37/04

Claims (1)

(57) [Claims] 1. An apparatus for cutting an end 1a of a synthetic resin profile 1 at 45 degrees and removing a welded tension generated at a welded portion of a synthetic resin frame a in which the ends are welded and connected at right angles. A mounting body having a vertical opening 241 having a vertical vertical side 241a and a vertical vertical side 241b oblique to the vertical, and inserted into the vertical opening 241 to contact the vertical vertical side 241a. A vertical guide 242 supported in a vertical position and an oblique position in contact with the other side vertical surface 241b, a sliding body sliding along the vertical guide 242, a cutter attached to the sliding body, and the vertical guide 242. Moving means, wherein the moving means has a substantially hook-shaped guide formed on the mounting body.
The chain 245 is inserted through the
45 is connected to the vertical guide 242, and
Shape connected to the movable part of a cylinder with its part mounted vertically
Welding tensioning the Remove device of the synthetic resin frame is.